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Could anyone help me how to solve the issue.

Asked by jaah navi on 16 Apr 2019
Latest activity Edited by Stephen Cobeldick on 16 Apr 2019
how to add all the values generated using for loop
for example
A=[1 2],[3 4],[7 5 6]
for i=1:length(A)
value% i am using formula to calculate the value
end
In this code first it run for [1 2] generates a value-(a)
then it run for [3] generates a value-(b)
then it run for [4 5 6] and generates a value-(c)
Now i want to add (a)+(b)+(c) after the end statement so i tried with the follwing command sum(value,:) but unable to get the result.
Could anyone please help me on this.

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1 Answer

Answer by Stephen Cobeldick on 16 Apr 2019
Edited by Stephen Cobeldick on 16 Apr 2019
 Accepted Answer

Using very basic MATLAB indexing:
A = {[1,2],[3,4],[7,5,6]};
N = numel(A);
Z = nan(1,N);
for k = 1:N
Z(k) ... your code using A{k}
end
sum(Z)
@ jaah navi: you have been using MATLAB since 2017, loops and indexing are very basic programming concepts that you should definitely learn yourself, they are explained in the introductory tutorials:

  3 Comments

i tried but unable to get the result.
in my code
length = 1:5
for
need to take 1st length and compute value-(a)
.. -(b)
.. -(c)
.. -(d)
need to take 5th length and compute value-(e)
end
now i need to add all the values together which means a+b+c+d+e
when i used the command sum(value),it displays the last value e without adding a+b+c+d+e together.Could you please help me on this.
with respect to your sample code
A = {[1,2],[3,4],[7,5,6]};
N = numel(A);
Z = nan(1,N);
for k = 1:N
Z(k) ... your code using A{k}
end
sum(Z)
The code is for A={[1,2],[3,4],[7,5,6]};
in the same manner i have different numbers for A
for example
when
A = {[1,2],[3,4],[7,5,6]};
the output can be obtained by sum(Z)
when A={[4 5 ],[1 3 4]
i can get the output by sum(Z)
now i need to add both sum(Z)
could you please help me on this.
jaah navi : you wrote in your original question that you have some code that "generates a value-(a)" and "generates a value-(b)" and "generates a value-(c)". You did not show us what that code is, or explain anything about how it works. However you made it clear that it returns a scalar "value". All you need to do is use indexing to put that scalar value into the numeric array Z, exactly as my answer shows you. The cell array A is irrelevant to this: my code uses numel to adjust to whatever size A happens to be.
If your code does not actually return a scalar value then you need to revise your question and explain the your data much better.

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